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MAX4821ETP+
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Product Detailed Parameters
- Description：IC PWR DRIVER N-CHAN 1:8 20TQFN
- Series：-
- Mfr：Analog Devices Inc./Maxim Integrated
- Package：Tube
- Switch Type：Relay, Solenoid Driver
- Number of Outputs：8
- Ratio - Input:Output：1:08
- Output Configuration：Low Side
- Output Type：N-Channel
- Interface：Parallel
- Voltage - Load：2.3V ~ 5.5V
- Voltage - Supply (Vcc/Vdd)：-
- Current - Output (Max)：70mA
- Rds On (Typ)：2Ohm
- Input Type：-
- Features：-
- Fault Protection：-
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Supplier Device Package：20-TQFN (4x4)
- Package / Case：20-WFQFN Exposed Pad
- Grade：-
- Qualification：-
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Overview
The MAX4821ETP+ is an eight-channel, cascadable relay driver manufactured by Analog Devices Inc. under the Maxim Integrated brand. It operates within a supply voltage range of 2.3 V to 5.5 V and features a parallel interface for control. The device provides built-in kickback protection for each channel and supports drive voltages of +3.3 V or +5 V. It is housed in a 20-pin TQFN package with an exposed pad, designed for surface-mount installation. The component functions as a low-side driver suitable for industrial and communication applications.
Feature Summary
- Eight-channel cascadable relay driver architecture
- Built-in kickback protection for load management
- Supports +3.3 V and +5 V drive levels
- Parallel interface control mechanism
Applications
- Automated Test Equipment (ATE)
- Central Office DSL and ADSL Line Cards
- E1/T1 Redundancy Systems
- Industrial Equipment Control
Procurement Notes
Verify the specific suffix and tape/reel versus tube packaging options available from authorized distributors. Confirm RoHS compliance status and lead times directly with the manufacturer or approved suppliers. Ensure the procurement source is authorized to guarantee authenticity and traceability of the Analog Devices component.
Selection Notes
Select this component when an eight-channel solution with cascadability is required for relay control. The parallel interface simplifies logic connections compared to serial alternatives. Consider the thermal performance of the exposed pad TQFN package for heat dissipation in dense PCB layouts requiring multiple driver channels.
Part Context
This part belongs to the MAX4820/MAX4821 family of relay drivers. It shares architectural similarities with the MAX4820 but distinguishes itself through its specific interface configuration and cascadable design. The series targets high-density switching applications in telecommunications and industrial automation sectors.
Replacement Considerations
The MAX4820ETP+ is a related part within the same family. Verify interface compatibility and pinout differences before substitution. Ensure the replacement meets the same voltage and current requirements for the target application.
